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Version: Latest-3.3

months_diff

Description​

Returns the month difference between two date expressions (expr1 − expr2), accurate to the month.

Syntax​

BIGINT months_diff(DATETIME expr1,DATETIME expr2);

Parameters​

  • expr1: the end time. It must be of the DATETIME or DATE type.

  • expr2: the start time. It must be of the DATETIME or DATE type.

Return value​

Returns a BIGINT value.

NULL is returned if the date does not exist, for example, 2022-02-29.

Examples​

select months_diff('2010-11-30 23:59:59', '2010-1-1 23:59:59');
+---------------------------------------------------------+
| months_diff('2010-11-30 23:59:59', '2010-1-1 23:59:59') |
+---------------------------------------------------------+
|                                                      10 |
+---------------------------------------------------------+

select months_diff('2010-11-30', '2010-1-1');
+---------------------------------------+
| months_diff('2010-11-30', '2010-1-1') |
+---------------------------------------+
|                                    10 |
+---------------------------------------+